SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 39

• Manufacturer Part Number: SCH3112I-NE
• Description: LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
• Manufacturer: SMSC [SMSC Corporation]

LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
Datasheet
Chapter 3 Block Diagram
SMSC SCH311X
nFPRST
PWRGD_PS
PWRGD_OUT
nDIR, nSTEP,
GP40, GP42,
PCI_RESET#
DRVDEN0*,
nWRTPRT,
nDSKCHG,
nWGATE,
GP21,22,
GP30-34,
GP36-37,
GP44-47,
GP50-57,
nHDSEL,
nRDATA,
nWDATA
nIO_PME
GP10-17
GP60-67
CLOCKI
nIO_SMI
nMTR0,
nINDEX
CLKI32
nTRK0,
LFRAME#
GP27,
nDS0,
SER_IRQ
LAD[3:0]
PCICLK
LDRQ#
Controller with
Write Precom-
Bus Interface
Power Mgmt
Separator &
Compatible
Digital Data
Proprietary
Floppydisk
Generation
CLOCK
pensation
Purpose
Watchdog
SERIAL
General
GEN
SMSC
82077
Reset
LPC
Timer
IRQ
I/O
Figure 3.1 SCH311X Block Diagram
WDT
(Data, Address, and Control lines)
DATASHEET
WDT*
Register
Hardware
Security
32 byte
Internal Bus
Monitor
Key
23
LEDs
PD[7:0]
BUSY,nSCLTIN
SCLT, PE
nERROR, nACK
nSTROBE, nINIT, nALF
Keyboard/Mouse
SCH3116 ONLY
SCH3114 ONLY
SCH3116 ONLY
AND FDC MUX
Power Control
and Recovery
ChiProtect
Parallel Port
High-Speed
PORT 1 & 2
High-Speed
PORT 3& 4
PORT 5 & 6
Multi-Mode
High-Speed
SCH3114,
SCH3112,
PCI Reset
controller
Outputs
16550A
16550A
16550A
UART
UART
UART
8042
with
TM
/
Rev 0.2 (09-28-04)
TXD1, RXD1
nCTS1, nRTS1
nDSR1, nDTR1
nDCD1, nRI1
TXD2 (IRTX2)
RXD2 (IRRX2)
nCTS2, nRTS2
nDSR2, nDTR2
nDCD2, nRI2
TXD3, RXD3
nCTS3, nRTS3
nDSR3, nDTR3
nDCD3, nRI3
TXD4, RXD4,
nCTS4, nRTS4
nDSR4, nDTR4
nDCD4, nRI4
MCLK, MDAT
A20M,
nKBDRST,
KCLK,KDAT
nIDE_RSTDRV
nPCIRST[1:3]
PB_IN#
PS_ON#
SLP_SX#
PB_OUT#
TXD5, RXD5
nSCIN5
nSCOUT5
TXD6, RXD6
nSCIN6
nSCOUT6